Where is the hash of the genesis block in the Bitcoin code ?

achow101

staff

Activity: 3458

Merit: 6793

Just writing some code

Quote from: RisitasLeGrand on January 12, 2018, 05:46:54 AM

I don't find it, the "main.cpp" file doesn't exists anymore, I've looked for the Genesis Block hash in validation.cpp and net_processing.cpp but i don't find anything Huh

It's in chainparams.cpp

LoyceV

legendary

Activity: 3290

Merit: 16489

Thick-Skinned Gang Leader and Golden Feather 2021

I assume you've downloaded https://github.com/bitcoin/bitcoin, just search for the hash eternalgloom mentioned. Quick and dirty, but it works:

Code:

bitcoin-master $ for i in `find`; do grep 000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f $i 2> /dev/null; done
                settings['genesis'] = '000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f'
genesis=000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f
        assert(consensus.hashGenesisBlock == uint256S("0x000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f"));
    src/bitcoin-cli -named getblock blockhash=000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f

Or, if you want to see which files contain these lines:

Code:

bitcoin-master $ for i in `find`; do if [ -n "`grep 000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f $i 2> /dev/null`" ]; then echo $i; fi; done
./contrib/linearize/linearize-data.py
./contrib/linearize/example-linearize.cfg
./src/chainparams.cpp
./doc/release-notes/release-notes-0.14.0.md

RisitasLeGrand

newbie

Activity: 8

Merit: 0

I don't find it, the "main.cpp" file doesn't exists anymore, I've looked for the Genesis Block hash in validation.cpp and net_processing.cpp but i don't find anything Huh

eternalgloom

legendary

Activity: 1792

Merit: 1283

Quote from: RisitasLeGrand on January 11, 2018, 08:50:42 AM

Everything is in the title Grin

Thanks in advance ! Wink

There's an entry in the Bitcoin Wiki about that, here's the link to the page: https://en.bitcoin.it/wiki/Genesis_block

So, the hash of the genesis block is: 000000000019d6689c085ae165831e934ff763ae46a2a6c172b3f1b60a8ce26f
The Bitcoin wiki article also mentions where it's found in the code Wink